All these variants can be explained using the principles just described in this
lecture. Max, whose Hebrew name was "Mordechai Leib", had a grandson named after
him after his death, named "Morton Leon" (given names fashionable in America in
1934, using the initial letters of the Hebrew name). On Max's son Harry's
tombstone, the Hebrew inscription is "Tzvi ben Mordechai Areyeh".
Max is referred to as "Mordechai Aryeh" --
"Areyeh" is the Hebrew calque of the Yiddish name "Leib" (both mean "lion").